I am in the process of doing my knock sensor and replacing injector seals while the intake is off. I am looking for tips for easily cleaning injectors and any tips or advice for removing and reinstalling. My plan is to blow some b12 through the injector and flush with gas while pulsing injector with 9v battery. Looking for suggesting on cleaning fluid, whether the injectors can take 12v or stick with 9v to be safe. Also if i remember correctly you normally dip injectors with new seals in gas before installing to help gaskets seal correctly... is there a preferred lubricant i should uses or will gas do just fine? Thanks in advance for the help!